Thermostat and like device.



0. L. FORTIER. THBRMOSTAT AND LIKE DEVICE. APPLIOATION FILED OUT. 31, 1913.

Patented Sept. 8, 191% sitioii while JLAlJuall,

CHARLES L. FORTIER, 015' MILWAUKEE, WISCONSIN, ASSIGI OR 'IO JOHNSON SERVICE GO'MPANY, O MILVJAUKEE, 'WISGQNSIN, A CORPORATION OF WISCONSIN.

THEREIOSTAT AND LIKE- fiElVICE.

Application filed Gctocei 31. 1913. Serial No. 758,492.

To all w]: om it may 0011mm:

Be it known that l, QI'IARLES Fon'rnm, a citizen of tho United Suites, residing Elli Milwaukee, in the county Milwaukee and State of ll 'iscousiu, have invents-d certain new and useful linpi'ov l cuts in Thor uiostuts and ii Devices, 01. which the following is a specification.

This involution s lo thermostats, hygrostziis and similar :lut iuzitic control desires. lurticului'ly those of the pressure motor typo.

The purposc oi the invention is tho thcrinoslut, hygrostut oiher responsivc clement from excessive ccusioncd by abnormal variations of temperature, humidity, etc, beyond llis control of the dcvicc. und to improve sh form and arrangement of the valve actuated by such respou SlYCllGVlCQ l illustrate the invention as applied lo a thermostat in the accompanying drawing, in which:

Figure l is nlront elevation of o thermostat having my invention applied; and Fig. is a sectional view of the thermostatic bar and its inounia.

For purposes of illustrusiou only, I show the device applied to a thermostat of the Johnson type. In these thermostats u supply and exhaust LulY 5 used to-admit ZC/ISS- sure to or release i2 from some control dcvice, and this valve operated by a dis,- phrugin through on interposed quick-throw mechanism. A pressure fluid, usually air, is supplied at :i very rcsricied rate to not upon the diaphragm, and this pressure may be vested through c leak pom cupzible of discharging air from the diaphragm or than the mic of supply there-to. he look port is controlled by uihermostssic valve so that when the thermostatic valve is closed the 218811111018; tionol pressure upon the diaphragm throws the supply and exhaust valve to one po- Lhc opening of: the leak port by the thermostatic valve causes the collapse oi the diaphragm and rows fills supply and exhaust valve is the rcvsrsc posii'iou. Whilc particularly adapzs'd for use; in this class or dwiccs invention is available.

for use Whorcvcr n automatic vulva is used to couirol a relatively small port in the gen er'ul manner lllllSlZluc in the draw:

Sgecification of Letters lstent.

Wall moiuii, 2 the' Patented Sept. 8 1914 base frame, 3 the diaphragm, 4c a lever adapted to be moved by the diaphragm and 1S :1 portion of tho quick-throw mechanism, which uctuulzcs the supply and exhausii valve (not shown). 6 is thelezik port. As already suggcstcd the specific forms of these parts are not material as they are illusirutcd inci-cly to show one method of adapting my invention iwlountcd on. the lower end of the frame 2 on pivots 7 is 2 weighted saddle S This suddle carries lxhcrmosiatic bar 9 prcf'ci ably of the bimetallic type adapted to flex under changes in rciiipcraturc, and having an upwardly extending portion carrying a valve seat 10 preferably of celluloid, adaptcd to seat against the end of the. leak port, (5 to close the same. The valve seat 10 is mounted over a suitable aperture 11 in the he our 9, and is clamped in place bv :1 clio The valve scat and clip are preli- "1 the outer or forward d the purpose of this is to :i'i'o'id. .es which might otherwise he orossio by the varying thickness of the celluloid s m, or the bar 9. It will be noted that because of the bent form of the bar Qthe favor:- of the bar against which the celluloid seat 10 boars is that face of the bar which bears against the Saddle'S. By insuring uniformity in the contour of the outer curve of the bar and placing the celluloid valve scat on the for side ofche bar as shown, all cli'cct of irregular thickness of tho celluloid or the bar is eliminated.

The cXtsnt of downward motion of the Weighted portion of the saddle 8 is limited by :1 stop screw 13 threaded in the lower and of the frame 2. Fast on the screw 13 face is an indicator dial 1% intended to be road frhrough an aperture iii the case for the thermosmt (not shown). A resilient pointer 15 carried by the frame serves is a clamping member and index combined. A pin 16 threaded in the frame of the dial 1% serves as c handle to swing the s'ai'n'e' and lah'crehy adjustthe screw 13 and illso as astrilrcr which by sngaigiug the lug 17 oiitlic scddls 8 will send to his the saddle and swing they,

i9 away from the leak port. In this po sitioiq tho pointer reads at tho dcsignotio i Oi oil the dial and ibis is -l;hc position in which the thermostat is completely iii operative. 1 The adjustment of tho scr'w' 12* determines the limit or usual cl us li o.

felons in temperature an Weighted portion of the saddle 8, and so as soon as the saddle 8 has descended to this limit a continued outward flexing of the bar 9 will open the leak port 6. Consequently the adjustment of the screw 18 determines the temperature at Which the leak port will be opened and closed by the thermostatic valve. The use of the Weighted saddle in sures that the thermostatic valve seat 10 Will never be forced against the leak port 6 with greater force than that due to the weight of the saddle and the pivoted mounting of the saddle permits the thermostatic bar to he swung forward to give ready access to the leak port for cleaning or adjustment.

The use of a transparent valve permits a ready inspection oi the seat and leak port While the tWo are in contact and the use of celluloid as material for the valve seat secures a tight sealing With a relatively light contact and eliminates any tendency to cut or bruise the end of the leak port.

A hygrostatic or any other responsive element may be mounted on the saddle in lieu of the thermostatic bar in such manner that the responsive element will by its changes of form coact with the adjustable stop 13 and leak port 6 effect the open inn and closing of the latter. As such substitution in no Way ail'ccts the principle of operation of the device it deemed unnecessary to illustrate it.

In the following claims I use the term responsive element to i: cute any element responsive to atmospheric changes such as thermostats, liygrosta'lis and, the like.

ln the following claii. the term control member is used to dicale any which may effect controll n the contact oi": the thermostatic or'othcr sponsive element or some connected part, therewith. While the leak port is the coinnioncst example of such a control. member, there are many others known in this and the term is used broadly to indicate any member which may eflect a controlling action by such contact.

Havingthus described my invention, What I claim is l. A valve for thermostats and the like comprising a tubular port and a celluloid valve ada pl'ed to seat against the end thercoh A. valve for thermostats and the like cou'iprising a tubular port and a transparent valve adapted to seat against the end thcrof.

Ar valve for thermostats and the like comprising a tuluilar port and a transparent celluloid valve adapted to seat against the end thereof 4. The combination in pressure iuotor 'control device having; a lealr )OEiof 'a thormostatic bar adapted to bond with va turc line with said lea parent valve seat uuiuntcd on said bar at said aperture and adapted to seal said port in certain positions of said bar.

The combination in a pressure motor control device having; a leak port o1" a thermostatic ha r adapted to bend with variations in temperature and having an aperture in line with said lcal: port; and a celluloid valve scat mounted on said bar at said aperture and adapted, lo seal said port in ccrlain positions of said bar.

6. The combination \vilh a pressure motor control device having a lcal uuiorh of a responsive clement iujlaptcd ix, move with variations in amnosphcric condition, and a transparent valve member adaplei'l to be moved by said clcuieut info and out of sealinc relation with said port 7. The combinulicn with a pressure moior control device having a leak jlul'l. of a re sponsivc element :ula .-lto move with variations in atmospheri liioiuliiion, and a celluloid valve member adapted to be umvcd by said element into and out oi scaling: rclation with said port.

8. The combination cl a control member; a movable thcrmoslatic bar :ulaplcd to bend into and out of contact thcrcuitl'zg and a yielding support for said bar z'uluplcd to relieve excessive contact pressure between said memberand 'lJitl.

E). The conibiualion of a control member; a movable llierimuilatic bur :ula tcd to lwnd into and out 0i ocular i'luuruill a yielding support for said bar ails to relieve exe civc contact pressure heme said menibcr and bar: and an ll(l lll.%lt!l l3 stop adapted to limit the uu'u'ciuent ol' t :l support in. a direction to carry lhc bar into contact with said member" it". Tlhe combination of a control member; a mova or adapted to more into and out cl co. thcrmvith; a responsive ole mcut opcrutively connected with said movable mmnhcr to move the same" under variatious in atmospheric conditions; and a yielding suoport for said respifnsive clement adapted to relieve live stress during contact oi control and z'rovs-ible mom-- hers.

11. The combination ofa contro n'ieinher; a mom blc member adapted to move into and out of contact "herewith; a responsive elemoot opcrati T connected with said movable member to move the same under variations in atmospheric conditions; a yielding pport for said responsive element adapted to r lieve Xccssive stress during contact of so cl control an movable members; and an adjustable stop L ted to limit the move-- mcnt of said sthe direction to ion control member;

a ll

l. (i ll ment operatively connected with said movable member tomove the same under changes in atmospheric conditions; a'wei hted pivoted support for said element an movable member, adaptedto yield to relieve exceSr' sive stress on said element and capable of being manually turned to separate said control and movable members; and an adjust-. able stop adapted to limit the movement of said support in a direction to efiect contact of said members. 7 I

13. The combination of a control device having a leak port; a celluloid valve adapt ed to seal said port when in-contact therewith; a thermostatic bar upon which said valve is mounted; and a yielding support for said bar adapted to revent excessive contact pressure between said port and valve.

14. The combination of a control device having a leak port; a celluloid valve adapted to seal said port when in contact therewith; a responsive element connected with said valve and adapted to'move the same into and out of contact with said port under changes in atmospheric conditions; a pivoted, Weighted support for said element adapted to relieve excessive contact pres sure between said valve and port; and an adjustable limit stop adapted to limit the movement of said support in a direction to eiiect contact between said valve and port.-

15. The combination of a control member; a responsive element adapted tomove into and out ofc'on'tact with said control member under changes of atmospheric con to vary the normal position of said vsaddle to adjust-the action of said respcnsiveelement; and a member moving with said stop and adapted in one extreme position thereof to engage said saddle and hold the same out of its normal position to render said responsive element inoperative.

16. A valve for thermostats and the like, comprising a pair of relatively movable ooacting valve members one of whichis transf parent at its point of seating against the v other, to permit inspection of the seating action of said valve while the members thereof are in operative relation with each other. ,y 17. A valve for thermostats and the like comprising a metallic vaivemember; a cor acting celluloid valve member-in operative relation therewith, said two valve members being movable one relatively 1-,to ;;the other to efiect an opening and closing-action; andzvia responsive element connected with one-of :1

movement.

said valve members to efiect relative,

ln testimony whereof Ihaivel-signedmy" name to this spcificatieiigm thepresenceo'f two subseribin witnesses.---,. Y a GiHBL -QQFFORTI R .-Witnesses; j 

